[PATCH] [aarch64] use clone(SIGCHLD, 0) instead of fork()

[Greg Fitzgerald]

Hi kcc,

Compilation fix for the common sanitizer library on AArch64

http://reviews.llvm.org/D3903

Files:
  lib/sanitizer_common/sanitizer_linux.cc

Index: lib/sanitizer_common/sanitizer_linux.cc
===================================================================
--- lib/sanitizer_common/sanitizer_linux.cc
+++ lib/sanitizer_common/sanitizer_linux.cc
@@ -508,7 +508,11 @@
 }
 
 int internal_fork() {
+#if SANITIZER_USES_CANONICAL_LINUX_SYSCALLS
+  return internal_syscall(SYSCALL(clone), SIGCHLD, 0);
+#else
   return internal_syscall(SYSCALL(fork));
+#endif
 }
 
 #if SANITIZER_LINUX
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